Use iControl API to query for node list for IP verification and hostname resolve.

See below. You'll need to download bigsuds and install it. I don't have nodes in multiple partitions so I cannot confirm that part, but it should work. the script will leave you with a python list(all_nodes) that contains the IP address of all the nodes on the device(in the given partition list)

import bigsuds

hostname = "hostname"
username="username"
Password="password"


b = bigsuds.BIGIP(
    hostname = hostname,
    username = username,
    password = password,
    )

b2 = b.with_session_id()

folders = ['/Common', '/SecondPartition']

all_nodes = []

for f in folders:
    b2.System.Session.set_active_folder(f)
    node_list = b2.LocalLB.NodeAddressV2.get_list()
    node_address = b2.LocalLB.NodeAddressV2.get_address(node_list)
    all_nodes.extend(node_address)